Soda Fountains contain bacteria

By CNN

It fizzes. It quenches. And it could also contain fecal bacteria.

Nearly half of the 90 beverages from soda fountain machines in one area in Virginia tested positive for coliform bacteria — which could indicate possible fecal contamination, according to a study published in the January issue of International Journal of Food Microbiology.

Researchers also detected antibiotic-resistant microbes and E.coli in the soda samples.

“Certainly we come in contact with bacteria all the time,” Renee Godard, lead author of the study and professor of biology and environmental studies at Hollins University, a private liberal arts college in Roanoke, Virginia.

“It’s simply that some bacteria may potentially cause some disease or gastrointestinal distress. One thing we hesitate with is that people get afraid of bacteria. Many of them are benign or helpful, but certainly, I don’t want E.coli in my beverage.”

The U.S. Environmental Protection Agency’s drinking-water regulations require that all samples test negative for E.coli.

Many of the soda beverages from the dispensers fell below U.S. drinking-water standards, according to the findings.

Godard and her colleagues acquired 90 beverages of three types, (sugar soda, diet soda, water) from 30 fast food restaurants in a 22-mile area near Roanoke, in southern Virginia. They surveyed beverages from both self-service and employee-dispensed machines and the samples were tested.

There were no reported outbreaks of food-borne illness related in the Roanoke area at the time of the study.

They found that 48 percent of beverages obtained from soda fountains contained coliform bacteria, 11 percent contained E. coli (which are mostly harmless, but some can cause diarrhea, urinary tract infections, respiratory illness and pneumonia), and 17 percent had Chryseobacterium meningosepticum (which could sicken newborns or adults with weakened immune systems).

Dr. Alanna Levine speaks on CBS: